ReactJS / Flask PDF Shows Blankl

Question

Using Flask to dynmically generate PDF reports to send to a ReactJS app. With flask, I have the following code:

 if request.method == "GET":
    if request.args.get("print"):            
        response = make_response(leddata.report(request.args),200)
        response.headers["Content-type"] = "application/pdf"
        response.headers["Content-disposition"]= ...
        return(response)

Where leddata.report returns a valid PDF string from PyFpdf.

ON the client side:

axios.get(`leddata?print=true&token=${sessionStorage.getItem("token")}`, {responseType: 'blob',params: gridstate.filters})
.then(res => {            
    console.log(res.data)
    const file = new Blob([res.data],{type:'application/pdf'});
    const fileURL = URL.createObjectURL(file);            
    
    window.open(fileURL)            
})        

I am getting a Blob response but the PDF is blank. Any suggestions?

question from:https://stackoverflow.com/questions/65831156/reactjs-flask-pdf-shows-blankl

Answer 1

Waitting for answers